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Elm phloem necrosis phytoplasma
All pictures by W.A. Sinclair (US)
(click
on the images to enlarge them)
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| Phloem discoloration
in Ulmus americana; |
Phloem discoloration
in Ulmus americana; healthy (left) and diseased (right). |
Necrotic rootlets on Ulmus americana |
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| Early foliar symptoms; healthy (left) and diseased (right) branches, showing epinasty of leaves. |
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